Question

What was the average force exerted on a 44 kg ojbect if the inital velocity was 7 m/s, the final velocity was 2 m/s and t was exerted for 4.5 s. Leave no spaces between units and the answer. No decimals.

Answer 1

Force exerted = 48.89 N

Step-by-step explanation:

Force = Mass x Acceleration

Mass = 44 kg

Acceleration is rate of change of velocity.

Acceleration,
`a=(2-7)/(4.5)=-1.11m/s^2`

Force = Mass x Acceleration = 44 x -1.11 = -48.89 N

Force exerted = 48.89 N